4 Pack - 20mm Round Shaft Central Door Lock Actuator Motor FC-280PC-22125, Spindle, Power Locking Repair Engine 4 Pack: 20mm shaft length version (long shaft) If you need the 10mm Round or 20mm/10mm FLAT shaft, view my other items 20mm Round Shaft Motor Only. No clamshell or gears Repairs many burned out door lock actuators Check your actuator for a match before purchase! We do not give compatibility advice!